One of the unique selling points of the Hismile kit is its unique PAP+ formula. It whitens teeth and doesn't cause any tooth sensitivity or pain. Meanwhile, hydroxyapatite helps remineralize teeth. How much is Hismile in the US? Potassium citrate: Relieves pre-existing sensitivity for a completely sensitivity-free whitening experience I believe most people would want to know if a new and unproven ingredient was safe and also effective. To answer that question needs proper studies with the right design (e.g. suitable controls as well as comparison products)."

I have never fully believed in teeth whitening, especially the at-home variety. Much like micro-needling and extractions, I just thought teeth whitening was one of those beauty endeavors best left to professionals. That, and the fact that every single whitening product I had ever tried had left me with either sensitive teeth, eczema around my mouth, or less-than-impressive results. Each HiSmile teeth whitening kit comes with enough gel for six applications, an LED light, a mouth tray, a shade guide and an instruction manual. HiSmile commissioned a study on human tooth enamel samples which found that the hardness of tooth enamel increased after six consecutive sessions, while a hydrogen peroxide treatment weakened tooth enamel. Anyone who wants to brighten their teeth and enjoy an instantly whiter smile can benefit from V34, applying it before or after teeth whitening treatments — pretty much any time you want an instantly brighter smile. You can also use it if you've just finished a whitening treatment, or are currently doing one. The Hismile kit uses an LED mouthpiece and whitening gel with a special PAP+ formula that not only whitens teeth but also includes ingredients that strengthen enamel and benefit oral health. Does Hismile work?We've tested to find you the best. Read electric toothbrushes review Is HiSmile safe or will it damage your teeth?

HiSmile commissioned a test on 24 people aged 19–55, and reports teeth were on average 3.5 shades whiter after a single 10-minute session. One of the ingredients, potassium nitrate, makes nerves in the dental pulp less likely to fire off and is found in toothpastes for sensitive teeth. It generally needs to be used regularly over a period of time – twice daily for two weeks or more – to have an effect.Another key ingredient in HiSmile is hydroxyapatite – also known as calcium phosphate – which is the main component of tooth enamel. While not widely available, it's found in some toothpastes to help strengthen teeth. Are these ingredients safe for teeth whitening? Yes, in fact, they help to improve the health of your smile while whitening your teeth. And, if we compare the PAP+ formula to peroxide-based whitening products, it whitens teeth with none of the detrimental effects that hydrogen peroxide can have on teeth and gums.

Hismile products are designed with convenience and total oral health in mind. Most importantly, the Hismile range has been designed to make your smilecare routine fun. Bored with mint? Hismile offer six delicious flavours to change the way you brush, and truly treat your teeth. Want a whiter, brighter smile? Hismile’s sensitivity-free PAP+ Strips and V34 Serum will transform your smile.

HiSmile's range of toothpastes and tooth-whitening pen. Image: HiSmile. Other products Teeth whitening pen Hismile also sells a range of other products to help with whitening, sensitivity and oral care. These include: We found a specific combination of key ingredients (Xylitol, L'arginine, Potassium Nitrate, Sodium Hexametaphosphate and Hydroxyapatite) would serve as an effective substitute. These ingredients have the ability to inhibit the growth of harmful oral bacteria, prevent the growth of plaque and tartar, and reduce dentinal hypersensitivity. Professor Walsh says, "There is no independent evidence that the form of hydroxyapatite used in HiSmile or the formulation of their particular gel will allow remineralisation to occur, or promote it.